The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Fujifilm GF 120mm F4 R LM OIS WR Macro and the Pentax DFA645 Macro 90mm F2.8 for their suitability to various photography scenarios:
Size and Weight Comparison
The size of a lens is a crucial factor to consider when comparing two lenses. Fujifilm GF 120mm F4 R LM OIS WR Macro is the longer of the two lenses at 153mm. The Pentax DFA645 Macro 90mm F2.8 with a length of 117mm, is 36mm shorter. On the other hand, the Pentax DFA645 Macro 90mm F2.8 has a larger diameter of 91mm compared to the Fujifilm GF 120mm F4 R LM OIS WR Macro's 89mm diameter.
The weight of a lens is equally significant as its external dimensions, particularly if you intend to handhold your camera and lens combination for extended periods. Fujifilm GF 120mm F4 R LM OIS WR Macro weighs 980g, which means it is 60g (5%) lighter than the Pentax DFA645 Macro 90mm F2.8 which has a weight of 1040g.
Filter Threads
The Fujifilm GF 120mm F4 R LM OIS WR Macro has a filter size of 72mm whereas the Pentax DFA645 Macro 90mm F2.8 has a 67mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 72mm filters that we recommend you to consider for the Fujifilm GF 120mm F4 R LM OIS WR Macro:
And these are the 67mm filters that we recommend for the Pentax DFA645 Macro 90mm F2.8:
Lens Mounts
The Fujifilm GF 120mm F4 R LM OIS WR Macro has the Fujifilm G lens mount whereas the Pentax DFA645 Macro 90mm F2.8 has the Pentax 645AF2 lens mount. Some of the latest released cameras that are compatible with these mounts are Fujifilm GFX Eterna 55, Fujifilm GFX 100S II and Fujifilm GFX 100 II for the Fujifilm G Mount and Pentax 645Z, Pentax 645D and for the Pentax 645AF2 Mount.
Focal Range
Fujifilm GF 120mm F4 R LM OIS WR Macro is a prime lens with fixed focal lenght of 120mm.
On the other hand, the Pentax DFA645 Macro 90mm F2.8 is a prime lens with fixed focal lenght of 90mm.
